Download or read book Dynamics in Enzyme Catalysis written by Judith Klinman and published by Springer. This book was released on 2013-09-14 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christopher M. Cheatum and Amnon Kohen, Relationship of Femtosecond–Picosecond Dynamics to Enzyme-Catalyzed H-Transfer. Cindy Schulenburg and Donald Hilvert, Protein Conformational Disorder and Enzyme Catalysis. A. Joshua Wand, Veronica R. Moorman and Kyle W. Harpole, A Surprising Role for Conformational Entropy in Protein Function. Travis P. Schrank, James O. Wrabl and Vincent J. Hilser, Conformational Heterogeneity Within the LID Domain Mediates Substrate Binding to Escherichia coli Adenylate Kinase: Function Follows Fluctuations. Buyong Ma and Ruth Nussinov, Structured Crowding and Its Effects on Enzyme Catalysis. Michael D. Daily, Haibo Yu, George N. Phillips Jr and Qiang Cui, Allosteric Activation Transitions in Enzymes and Biomolecular Motors: Insights from Atomistic and Coarse-Grained Simulations. Karunesh Arora and Charles L. Brooks III, Multiple Intermediates, Diverse Conformations, and Cooperative Conformational Changes Underlie the Catalytic Hydride Transfer Reaction of Dihydrofolate Reductase. Steven D. Schwartz, Protein Dynamics and the Enzymatic Reaction Coordinate.

Download or read book The Enzyme Catalysis Process written by A. Cooper and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents the proceedings of a NATO Advanced Studies Instituteheld near Barga (Italy), July 11-23, 1988, involving over 90 participants from more than twelve countries of Europe, North America and elsewhere. It was not our intention at this meeting to present a complete up-to-the-minute review of current research in enzyme catalysis but t·ather, in accord wi th the intended spiri t of NATO ASis, to gi ve an opportunity for advanced students and researchers in a wide variety of disciplines to meet tagether and study the problern from different points of view. Hence the lectures cover topics rauging from the purely theoretical aspects of chemical reaction kinetics in condensed matter through practical experimental approaches to enzyme structure, dynamics and mechanism, including the new experimental opportunities arising from genetic engineering techniques. Our approachwas unashamedly physical, both because the more biochemical aspects of enzymology are amply covered elsewhere and because progress in our understanding and application of the molecular basis of enzymic processes must ultimately come from advances in physical knowledge. We tried to cover as wide a spectrum as possible, and succeeded in gathering an expert and enthusiastic team of speakers, but there . are some inevitable omissions. In particular, and with hindsight, our discussions might have been enriched by more detailed coverage of general aspects of chemical catalysis - but readers requiring this background should find adequate references herein.

Download or read book Enzyme Catalysis and Regulation written by Gorden Hammes and published by Elsevier. This book was released on 2012-12-02 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzyme Catalysis and Regulation is an introduction to enzyme catalysis and regulation and covers topics ranging from protein structure and dynamics to steady-state enzyme kinetics, multienzyme complexes, and membrane-bound enzymes. Case studies of selected enzyme mechanisms are also presented. This book consists of 11 chapters and begins with a brief overview of enzyme structure, followed by a discussion on methods of probing enzyme structure such as X-ray crystallography and optical spectroscopy. Kinetic methods are then described, with emphasis on the general principles of steady-state and transient kinetics. The chemical principles involved in enzyme catalysis are also discussed, and case studies of a few well-documented enzymes are presented. The regulation of enzyme activity is analyzed from a nongenetic viewpoint, with particular reference to binding isotherms and models for allosterism. Two particular enzymes, aspartate transcarbamoylase and phosphofructokinase, are used as examples of well-studied regulatory enzymes. The last two chapters focus on multienzyme complexes and membrane-bound enzymes. This monograph is intended for graduate students, advanced undergraduates, and research workers in molecular biology and biochemistry.

Download or read book New Trends in Enzyme Catalysis and Biomimetic Chemical Reactions written by Gertz I. Likhtenshtein and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is a view of enzyme catalysis by a physico-chemist with long-term experience in the investigation of structure and action mechanism of biological catalysts. This book is not intended to provide an exhaustive survey of each topic but rather a discussion of their theoretical and experimental background, and recent developments. The literature of enzyme catalysis is so vast and many scientists have made important contribution in the area, that it is impossible in the space allowed for this book to give a representative set of references. The author has tried to use reviews, and general principles of articles. He apologizes to those he has not been able to include. . ... The monograph is intended for scientists working on enzyme catalysis and adjacent areas such as chemical modeling of biological processes, homogeneous catalysis, biomedical research and biotechnology. The book can be use as a subsidiary manual for instructors, graduate and undergraduate students of university biochemistry and chemistry departments."--Pages ix-x.

Download or read book Biomass Biofuels Biochemicals written by Sudhir P. Singh and published by Elsevier. This book was released on 2020-04-03 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Enzyme Catalysis and Technologies intends to provide the basic structural and functional descriptions, and classification of enzymes. The scientific information related to the recombinant enzyme modifications, discovery of novel enzymes and development of synthetic enzymes are also presented. The translational aspects of enzyme catalysis and bioprocess technologies are illustrated, by emphasizing the current requirements and future perspectives of industrial biotechnology. Several case studies are included on enzymes for biofuels application, micro algal biorefineries, high-value bioactive molecules production and enzymes for environmental processes, such as enzymatic bioprocessing for functional food development, biocatalytic technologies for the production of functional sweetener, etc. Provides a conceptual understanding of enzyme catalysis, enzyme engineering, discovery of novel enzymes, and technology perspectives Includes comprehensive information about the inventions and advancement in enzyme system development for biomass processing and functional food developmental aspects Gives an updated reference for education and understanding of enzyme technology

Download or read book Multiple time scale Dynamics in Enzyme Catalysis written by J.R. Exequiel T. Pineda and published by . This book was released on 2009 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protein Dynamics in Enzyme Catalysis and Ligand Binding written by Yao Fan and published by . This book was released on 2007 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life in atomic Motion written by Gira Bhabha and published by . This book was released on 2011 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conformational dynamics are important for a variety of biological functions, including enzyme catalysis. Many questions remain as to the role of protein dynamics in enzyme catalysis, and these questions are best addressed in model systems for which detailed kinetic, biological and biophysical data can be obtained. Dihydrofolate reductase (DHFR) is an enzyme present in almost all cell types, and catalyzes the stereospecific reduction of dihydrofolate (DHF) to tetrahydrofolate (THF) using NADPH as a cofactor. THF is a precursor for thymidylate synthesis and is, therefore, required for cell proliferation. Much biochemical and structural work has shed light on various aspects of E. coli DHFR (ecDHFR), making it a paradigm for understanding enzyme mechanism. We have studied the protein conformational motions present in human DHFR (hDHFR), and find that despite a high level of structural conservation between hDHFR and ecDHFR, the dynamic mechanisms of the two enzymes are quite different. While E. coli DHFR employs an extensive loop motion to facilitate ligand flux, its human counterpart has evolved a more subtle and sophisticated twisting-hinge motion to the same end. Based on the differences in flexibility and motion in these two enzymes, we designed a mutant of ecDHFR, which abolishes the active site dynamics without perturbing the protein structure or preorganization of the active site configuration. This mutant allowed us to assess the role of dynamics in ecDHFR catalysis, and we found that the millisecond timescale dynamics play a critical role in the chemical step of catalysis as well as in ligand flux for ecDHFR. Combining these detailed structural studies on ecDHFR and hDHFR with bioinformatic analyses, mutagenesis, x-ray and NMR data, we are able to gain insights into the evolution of DHFR dynamic mechanisms at an atomic level.

Download or read book Enzyme Kinetics and Mechanism written by Paul F. Cook and published by Garland Science. This book was released on 2007-03-06 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzyme Kinetics and Mechanism is a comprehensive textbook on steady-state enzyme kinetics. Organized according to the experimental process, the text covers kinetic mechanism, relative rates of steps along the reaction pathway, and chemical mechanism—including acid-base chemistry and transition state structure. Practical examples taken from the literature demonstrate theory throughout. The book also features numerous general experimental protocols and how-to explanations for interpreting kinetic data. Written in clear, accessible language, the book will enable graduate students well-versed in biochemistry to understand and describe data at the fundamental level. Enzymologists and molecular biologists will find the text a useful reference.

Download or read book Structural and Functional Aspects of Enzyme Catalysis written by H. Eggerer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymes perform the executive role in growth, energy conversion, and repair of a living organism. Their activity is adjusted to their en vironment within the cell, being turned off, switched on, or finely tuned by specific metabolites according to demands at the physiologi cal level. Each enzyme discovered in the long history of enzymology has revealed its own individuality. Even closely related members of a family differ in specificity, stability or regulatory properties. Despite these, at first sight overwhelming aspects of individuality, common factors of enzymic reactions have been recognized. Enzymes are stereospecific catalysts even when a nonspecific process would yield the same product. Knowledge of the detailed stereochemistry of an enzymic reaction helps to deduce reaction mechanisms and to ob tain insight into the specific binding of substrates at the active site. This binding close to catalytically competent groups is related to the enormous speed of enzyme-catalyzed reactions. The physical ba sis of rate-enhancement is understood in principle and further exploit ed in the design of small organic receptor molecules as model enzymes. These aspects of enzyme catalysis are discussed in Session 1. Session 2 emphasizes the dynamic aspects of enzyme substrate inter action. Substrate must diffuse from solution space to the enzyme's surface. This process is influenced and can be greatly facilitated by certain electrostatic propterties of enzymes. The dynamic events during catalysis are studied by relaxation kinetics or NMR techniques.

Download or read book A Role for Nuclear Tunneling and Protein Dynamics in Enzyme Catalysis written by Zachary David Nagel and published by . This book was released on 2009 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Enzyme Dynamics and Regulation written by P. Boon Chock and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in concepts and techniques have brought enzyme research to a changing yet exciting stage. Enzymes have served as indispensable tools in the phenomenal rise of molecular biology, and the resultant biotechnology thrusts enzymes to new heights and territories. This volume, the proceedings of a recent symposium on the Dynamics of Soluble and Immobilized Enzyme Systems, provides a current overview of the field to help scientists utilize long-established and newly acquired information.

Download or read book The Enzyme Catalysis Process Energetics Mechanism and Dynamics Volume 178 written by A Cooper (ed) and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Role of Sub picosecond Dynamics in Enzyme Catalysis Explored Through Transition Path Sampling written by Sara Quaytman Machleder and published by . This book was released on 2009 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantum Tunnelling in Enzyme catalysed Reactions written by Rudolf K. Allemann and published by Royal Society of Chemistry. This book was released on 2009 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been an explosion in knowledge and research associated with the field of enzyme catalysis and H-tunneling. Rich in its breath and depth, this introduction to modern theories and methods of study is suitable for experienced researchers those new to the subject. Edited by two leading experts, and bringing together the foremost practitioners in the field, this up-to-date account of a rapidly developing field sits at the interface between biology, chemistry and physics. It covers computational, kinetic and structural analysis of tunnelling and the synergy in combining these methods (with a major focus on H-tunneling reactions in enzyme systems). The book starts with a brief overview of proton and electron transfer history by Nobel Laureate, Rudolph A. Marcus. The reader is then guided through chapters covering almost every aspect of reactions in enzyme catalysis ranging from descriptions of the relevant quantum theory and quantum/classical theoretical methodology to the description of experimental results. The theoretical interpretation of these large systems includes both quantum mechanical and statistical mechanical computations, as well as simple more approximate models. Most of the chapters focus on enzymatic catalysis of hydride, proton and H" transfer, an example of the latter being proton coupled electron transfer. There is also a chapter on electron transfer in proteins. This is timely since the theoretical framework developed fifty years ago for treating electron transfers has now been adapted to H-transfers and electron transfers in proteins. Accessible in style, this book is suitable for a wide audience but will be particularly useful to advanced level undergraduates, postgraduates and early postdoctoral workers.

Download or read book Enzyme Kinetics and Mechanism written by Vern L Schramm (Ed) and published by . This book was released on 1999 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Approaches to Protein Dynamics written by Monika Fuxreiter and published by CRC Press. This book was released on 2014-12-24 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Latest Developments on the Role of Dynamics in Protein FunctionsComputational Approaches to Protein Dynamics: From Quantum to Coarse-Grained Methods presents modern biomolecular computational techniques that address protein flexibility/dynamics at all levels of theory. An international contingent of leading researchers in chemistry, physics, an